Looking on the internet deeply has found these results:

he is suppose to come with it is the most popular phrase on the web.

he will be coming with it 11 results on the web	he is suppose to come with it 1320,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Volkoff will know that they are dead, which means that he will be coming here for me. I would prefer it if you came with me willingly, but understand this Cops will be coming with a warrant. The designated I.R., which means he will be coming back for your big playoff push, all right? I don't know. I do not believe he will be coming in, Your Honor. He will be coming home in ten days. I am glad, though, that the German foreign minister Mr Steinmeier has not hesitated to confirm that he will be coming to meet our committee;I have to say that we also expect other prominent figures to do likewise.	It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

he will be coming with it

11 results on the web

he is suppose to come with it

1320,000,000 results on the web

More popular!

Volkoff will know that they are dead, which means that he will be coming here for me.
I would prefer it if you came with me willingly, but understand this
Cops will be coming with a warrant.
The designated I.R., which means he will be coming back for your big playoff push, all right?
I don't know.
I do not believe he will be coming in, Your Honor.
He will be coming home in ten days.
I am glad, though, that the German foreign minister Mr Steinmeier has not hesitated to confirm that he will be coming to meet our committee;I have to say that we also expect other prominent figures to do likewise.

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.